git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@36 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-moeo/src/moeoArchiveFitnessSavingUpdater.h

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// moeoArchiveFitnessSavingUpdater.h
+// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2006
+/*
+    This library...
+
+    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
+ */
+//-----------------------------------------------------------------------------
+
+#ifndef MOEOARCHIVEFITNESSSAVINGUPDATER_H_
+#define MOEOARCHIVEFITNESSSAVINGUPDATER_H_
+
+#include <fstream>
+#include <string>
+#include <eoPop.h>
+#include <utils/eoUpdater.h>
+#include <moeoArchive.h>
+
+#define MAX_BUFFER_SIZE 1000
+
+/**
+ * This class allows to save the fitnesses of solutions contained in an archive into a file at each generation.
+ */
+template < class EOT > class moeoArchiveFitnessSavingUpdater:public eoUpdater
+{
+public:
+
+  /**
+   * Ctor
+   * @param _arch local archive
+   * @param _filename target filename
+   * @param _id own ID
+   */
+moeoArchiveFitnessSavingUpdater (moeoArchive < EOT > &_arch, const std::string & _filename = "Res/Arch", int _id = -1):arch (_arch), filename (_filename), id (_id),
+    counter
+    (0)
+  {
+  }
+
+  /**
+   * Saves the fitness of the archive's members into the file
+   */
+  void operator () ()
+  {
+    char buff[MAX_BUFFER_SIZE];
+    if (id == -1)
+      sprintf (buff, "%s.%u", filename.c_str (), counter++);
+    else
+      sprintf (buff, "%s.%u.%u", filename.c_str (), id, counter++);
+    std::ofstream f (buff);
+    for (unsigned i = 0; i < arch.size (); i++)
+      f << arch[i].fitness () << std::endl;
+    f.close ();
+  }
+
+
+private:
+
+	/** local archive */
+  moeoArchive < EOT > &arch;
+	/** target filename */
+  std::string filename;
+	/** own ID */
+  int id;
+	/** counter */
+  unsigned counter;
+
+};
+
+#endif /*MOEOARCHIVEFITNESSSAVINGUPDATER_H_ */